<!DOCTYPE html>
<html>
 
<head>
  <meta charset=utf-8>
  <title>文件下载演示</title>
</head>
 
<body>
 
  <div>
    <button onclick="fileLoad()">文件下载</button>
    <iframe name="iframeId" style="display:none"></iframe>
  </div>
  <script type="text/javascript">
    function fileLoad() {
      window.open('http://oss.wangmiaozero.cn/wechatDocment/preview/WXpodcast.zip');
    }
  </script>
</body>
 
</html>